Calculating machine



Al1g 30, 1932 c. GARDNER CALCULATING MACHINE original Filed June 7, 1924 4 Sheets-Sheet s v N Q .ma s

Aug. 30, 1932.

C. GARDNER CALCULAT ING MACHINE 5N. mN f,

C. GARDNER CALGULAT'ING MACHINE Original Filed June .7, 1924 4 Sheets--Sheet` ug. 30, 1932. c. GARDNER 1,874,700

CALCULATING MACHINE original Filed June 7, 1924 4 Sheets-shed 4 gQ@ Q@ C@ @CDGGQQQQCQ @@@g Lx i $3 QQQQQQQ@ av M y 32674226? Patented Aug. 30, 1932 UNITED STATES PATlazNTV OFFICE 'CLYDE GARDNER, DECEASED, ,LATE 0F EBENSBURG, PENNSYLVANIA, BY EDN-AT IB.

GARDNER, ADMINISTRATBIX, F EBENSBURG, PENNSYLVANIA, ASSIGNOB, BY' MESNE ASSIGNMENTS, T0 GARDNER COMPANY, 0l' EBENSBURG, PENNSYLVANIA,

A CORPORATION 0F DELAWARE CALGULATING ucm Original application iiled .Tune 7, 1924, Serial No. 718,678. Divided and this application iiled 5, 1928. Serial ll'o. 317,431.

This application is a division of the application of Clyde Gardner, Serial Number 718,67'8, led June 7, 1924. The subject matter described and claimed herein relates to improvement in machines of the class stated.

The principal object of the invention is to improve the type alignment and secure visible printing. This is obtained by 'forcing the -type bars toward the platen into a fixed V shaped aligning bar and when the hammers have fired, to allow the type bar to be restored forward to a position to give the most visibility and at the same time to drop the printing* ribbon below the println line. These two operations allow the item t at has -been printed to be seen by an operator without the platen being moved, which is a very desirable feature. No springs are connected to the ty e, thus allowing a lighter spring to be emp oyed on the hammers. This, moreover produces a clearer print. Spring arms are employed which when the hammers are restored, Contact the hammers. The travel of the spring arms is limited so that the hammers need not follow the type against the platen although the hammers are free to follow through the blow that the spring arms give to them and then rebound out of the way -of the type, due to the spring arms not forcing the hammers all the Way, the hammers being restored by the .usual restoring bail.

The foregoing and other objects and advantages will appear as thek description proceeds in connection with the accompanying drawings, in which the same reference numerals are used to designate the various parts in all the views, and .in which: Fig. 1 illustrates a right side elevation of the machine partly in section (taken on the line. 1 1, Fig. 9) with4 the vparts ,in normal position.. f i

Fig. 1A is a plan view of the type bars, and the means used for aligning thev same. Fig. 2 is a left hand side elevation, partly in section, taken just inside v`the left hand side frame, and showing` the position assumed by some of the parts illustrated when the non-print and the 4 key have been depressed, and with the operating mechanism in its forward position. This view also illus- November trates the counter control keys, upper, lower and both, with the lower counter control key depressed.

Fig. 3 is a right side elevation, partly in section, taken on a line just insidethe right hand side frame, the mechanism that has to do particularly with the control and operation of the accumulating section, the parts being shown in their normal position.

lFig. 4 is a plan' view of the machine.

Re ference chamctegs vThe reference characters used in this specication are the same as those used to designate the same parts in the specification of the parent application, above referred to.

Totalz'zer operating mcham'am The counter or accumulator operatin' mechanism comprises pivoted three-arme actuators 610, Fig. 1, mounted on a shaft 608. One arm 610a ofeach lever extends upwardly and is pivoted to an index blade 615 differentially stepped relatively to the numeral keys; anothergarm 610" is pivoted' to a type bar 611 and the third`arm610c in a rack which engages the totalizer pinions directly. v

The index blades 615 (Fig. 1) are ivotally sup orted. at the rear on studs654 xed, one

in t e upper arm 610, Fig. 1, of each ofthe three-armed levers. These index blades 615 are normall held in rearward position by latches 617 Fig. 1) which en age studs 659, one on the arm 610 of each o? the levers 610 as will be described more in detail hereafter. Springs 683, one for each blade, having one end fastened to the stud 654 and the other vsecured to the shaft 606, mounted in the plates 614 of an auxiliary frame, tend to draw'the index blades forward.

Each index blade 615 is provided with la series of sto s 615b\which coo erate with the keys215 ig. 2) so as to a low the index blades 615 'to advance distance proportional.

to the value of the keys 215 depressed. If no key in any order is depressed, the index blade will move forward until stopped by latches 214, one for each order, the rear ends 214- of which engage with the stop 61.5

terminates (Fig. 1), thus setting the type bars 611 for these orders at zero.

Mounted between the side frames 310 Figs. 2 and 3, isv a rock shaft 302. Just inside the right frame 310, Fig. 3, and rigidly fixed to this shaft is a three-armed lever 327. One of the arms 327a is used to release the keys; another 327b carries a stud 3524 to which is pivoted at one end a link 321, the other end of which is pivoted on a stud 354 in the arm 316, secured to the shaft 301.

When the machine is operated by the handle 311, it will through these connections rock the shaft 302. The lever 327 also has another arm 327, Fig; 3, which is pivotally connected by a stud 353 to a dash pot 370 of familiar construction. This dash pot is pivotally mounted at 308 to the right side frame 310, Fig. 3. y

It will thus be seen that the rocking of the shaft 301 will rock the arm 316, and this, in turn, through link 321, will oscillate the lever 327; and since the arm 327c is connected to the piston of the dash pot by means of the rod 303, the dash pot will regulate the speed of movement of the operating parts upon the return movement of the handle.

Hmm/mer section- The hammer section of the printing mechanism is mounted in a special frame in ,the rear of the machine.. This frame consists, primarily, of the side plates 710, 710, Figs. 1 and 1A. These plates have their front ends slotted and supported in grooves in the shaft 306, Fig. 1, while their rear ends are secured onshaft 304. A

'shaft 706, Fig.` 1, extends through the right hand plate 614, then through both plates 710, and has its other end secured in the left hand plate 614 of the supplemental frame. This ties the hammer section to the other parts of the machine.

Type bara--As before explained, the type bars 611 are secured one to the rear end 610 of each of the rack members 610. The yends 610b of some of these arms are offset to a degree suflicient to bring the type bars 611 together at the rear of the machine. On the side of the upper end of each type bar 611, Fig. 1, is a type cover plate 612, held in place by pins 6531 or any other suitable means. The upper ends of the type bars are slotted to receive the type 6770. The type lie loosely in the type bars, no springs being used to keep the samein place. When the index bladesI 615 move forward, the associated typel bars 611 will be raised distances proportional to the movement of the index blades; and when these blades shall have come to rest against the keys 215, type 6770 corresponding to the value of the keys depressed, will have been brought into printing position.

Impression wicca- The impression is ef-l fected by a special arrangement of hammers and associated elements, all mounted in the special frame just described. The essential parts of this mechanism are the hammers 715, one for each order; spring yactuated hammer operating arms 716, one for each order; hammer lock arms 717, one for each hammer; and triggers 718, one for each lock arm.

Ham/mers.-The hammers 715 have heads of substantial mass, and each is provided with an extension 715' Fig. 2. The lower ends of the hammers are mounted on the grooved shaft 701 secured in the frame plates 710, and are slotted so as to be easily placed on and removed from the shaft. At the eXtreme lower end each hammer is provided with two ledges, one 715a for cooperation with the ledge 717b on its companion lock arm 717 and another 715 for cooperation with its companion spring arm 716.

Spring arms.-The spring arms 716 are slotted at their lower ends so as to be easily mounted upon, and de-mounted from the slotted shaft 703, Fig. 1, which shaft is secured in the frame-plates 710. The upper ends of these spring arms cooperate withy the ledges 715 of the hammers 715. Springs 781, one for each arm, have one end secured to its arm and the other end to aA bar 713 arranged between the frame plates 710. These springs are normally under tension and draw the ends of the spring arms against the ledges 715c of their cooperating hammers 715; and when the hammers are released, cause the spring arms to give a striking bl-ow to the hammers.

Hammer Zoo/c arms--The hammer lock arms 717 are slotted at their upper ends, so that they may be readily placed upon, and removed from, the slotted shaft 702, which shaft is mounted in the side frames 710. These lock arms are each provided with a ledge 717 before referred to, cooperating with the ledge 715a of its companion haml mer 715; and with another ledge 717, which cooperates with a ledge 718 on its companion trigger 718. Springs 782, one for each order, have one end secured to the front end of each lockarm, and the other to a hook on its companion trigger 718, so that' these springs tend to hold ,the lock arms in position, and at the same time tend to raise 7 'd their companion triggers 718. A rod 709 secured in the side frames 710 lies directly above the rear ends of the lock arms, and serves as a stop to limit the movement of the arms inI an upward direction; and another rod 7091, also secured in the side plates 710, lies directly beneath the pivots and prevents the displacement of the lock arms, but permits their movement ,on the shaft 7 02.

Triggers-The triggers 718, one for each order, are mounted for rotation on the slot` ted shaft 704, which shaft is mounted vfor bodily movement in arms or cams 711. These arms or cams are pivoted on the shaft 7 091, secured in the side frames 710, as just eX- *25. 715, to effect the printing` stroke. Springs,

'.them to home and locked plained. These triggers 718r each have a ledge 718, before referred to, for cooperation with the hammer lock arm 717 and each has an elongated rearward extension 718", which rests beneath a stud 653 of its cooperating type bar 611. These triggers are held against these studs 653, and are caused to follow the same when the type bars are lift! ed, by the tension of the springs 782, before referred to. The extension 718b `is of such construction or length that the trigger will still remain beneath its stud 653 when the type bars shall have been moved to printing position, as will be later explained. A rod 708 arranged inthe cams or arms 711 just below the hooked ends of the triggers prevents them from coming off thev shaft 704 but permits their rotation thereon.

i Trip frame-The shaft 704, upon which the triggers are mounted, as Vbefore explained.l is fixed in the trip arms or cams 711, which, with the shaft 708, constitute a frame pivoted on the shaft 7091. lThis frame is used to operate the triggers and release the hammers 783, Fig. 1, each having one end secured to the rod 708, and the-other to the stop rod l709, tend to draw this trip frame to the rear, so as to hold the triggers in position for their ledges 718a to engage the ledges 717c of their cooperating hammer lock arms 717. This movement is limited by studs 7500 one in each cam 717, which under the tension of the springs, are drawn against the margins of the recesses in the plates 710.

This Atrigger frame is operated by studs 3561 secured one on each of the arms 317, Fig. 2, which are mounted on and oscillate with the shaft 302, as will be explained more at length, Iunder the title bail operation devices, yet to be described.

Ham/mer restoring bwl- Cooperating with the hammers 715, and serving to restore the same after they have been operated, is a bail comprising the arms 712 and 7120, Figs. 1A and 2, and the connecting bar 707. The arms are mounted on the shaft 701, and carry rolls 750,'Fig. 1A, which are acted upon by cams 317 on shaft 302 and fced to home position, Fig. 2, During the early part of the operation this bail moves away from the hammers, so as to be out of the w'ay of the hammers as they make their striking movement; but near the `close of the cycle the cams 317 strike the rolls 750, and operate the bail; and the bar 7 07, coming against the hammers restores ition.

Tja/pe bar .shifting mec m'sm.-As before stated, the type bars normally stand so as not to interfere with visual inspection of the platen; but when an impression is to be taken, they are lmoved bodily to a position where the type may strike the platen, and afterl printing has been effected are again moved away to normal position. The means for thus shifting the type bars will now be described.

Pivotally mounted on the ends of shaft 701 are two bars 714, Figs. 1A and 2. These bars are secured at their'tops to a spacer 770, and at their lower ends to a short shaft or` spacer 705. These arms 714 and spacers 770 and l705 together constitute a bail by which the type bars are moved back and forth.

Secured to the spacer 7 70 and to the top of the right hand bar 714, are arms 719, each bearing a stud 754, Fig. 1A. These studs 754 are arranged one each in 'a groove 612a in the several type cover plates 612. These constitute -the means for controlling the upper ends of the type bars. The slots 612a in the cover plates permit the type bars to move` up and down for type selection, but nevertheless always keep them under control. The left hand plate 714 does .not carry a stud 754, for the last type bar is controlled by the last arm 719 on the spacer 7 7 0.

Bail operating cricca-Thebail for operating the triggers, the bail for restoring the hammers, and the bail for positioning vthe type bars are all operated by the cams 317 secured to the shaft 302, Fig. 2. I

These cams 317 carry studs 3561, one on each cam, whicli cooperate with the trip arms or cams 711, Fig. 1, pivoted on shaft 7091, before described, and depress the same. This draws back the triggers 718, and hammer lock arms 717, until the ledges 717" of the lock arms 717 are drawn away from the ledges 715a of the hammers, whereupon the arms 716 acting under the influence of their springs 781, shift those hammers which have been released with a striking blow to-efect the printf ing. As the hammers iyto strike, their .lower ends contact a shaft 709, Fig. 1, but the parts are so adjusted that the blow is given and then the hammers rebound from the shaft.

The rolls 750 of the bars 712 and 7120 of the .hammer resetting bail lie in the path'of, and normally rest upon, the cams 31-7. As the cams move down to the position shown in Fig. 2, due to rotation of the shaft 302, the hammer resetting bail will fall to a perpendicular position, thus leaving the ledges 715a of the h amrmers free to enga e the ledges 717'J of the hammer lock arms '17, so that they can be released by their respective triggers 718. Upon restoration of the cams 317 to home position,

their top edges will strike the studs 750 and force this restoring frame to normal position,

the upper rod 707 of this bail forcingthe hammers 715 to home position. I.

As the cams 317 move down' to the position shown in Fig. 2, studs 3560 thereon. cooperate 1 with the cam faces 714a on the side arms 714 of the type bar bail, thus oscillating the bail upon its pivots and bringing the upper ends of the type bars to exact printing position. As the cams 317 move to home position, a

spring 7801, Fig. 2, restores this bail and the .type bars to normal position.

Almen-As the type bars move toward the .rear to be positioned for printing, they are definitely alined. Fixed at the rear of the machine in any suitalole manner is a bar 7092, having a V-shaped front edge; and each and fall of the type bars are provided with a series of V-shaped notches, Figs. 1 and 2. As the type bars move back and come to final position just before the 'printing stroke is taken, the notches engage the bar7092, and all the type are thus brought to definite position.

What is claimed is:

l. In a recording machine, a platen positioned for visual Inspection at the printing line, type carriers each provided with a plurality of type co-operating with the platen, means for adjusting the type carriers to align the individual type to be printed, means for moving the previously adjusted carriers from non-printing to printing position, means for taking an impression from the type, and means for moving the type carriers away from printing position so that the printing Vmay be inspected.

2. In a recording machine, a platen positioned for visual inspection at thevprlnting line, type carriers provided with a pluralityI of type co-operating with the platen, means for adjusting the type carriers to align the individual type to be printed, means for moving the previously adjusted type carriers bodily toward and away from the platen, and means for taking an impression from the previously selected type.

3. In a recording machine,- a platen positioned for visual inspection at the printing line, type carriers provided with a plurality of type co-operating with the platen, means for adjusting the type carriers to align the individual type to be printed, means for moving the previously adjusted type carriers toward and away from printing position, an aligner operable to perfect the alignment as the type carriers are moved to printing position, and means for taking an impression from the type.

4. In arecording machine, a platen positioned for visual inspection at the printing line, type carriers provided with a plurality of type co-operating 'with the platen, means for adjusting the type carriers to select the desired type, a fixed aligner for the type clarriers, means for moving the type carriers to printing position and into engagementy with the aligner and away from printing position and out of engagement with the aligner, and means for taking an impression while the type carriers-are in printing position.

' 5. In a recording machine, a platen positioned for visual inspection at the printing line, type carriers provided with a plurality of type co-operating with the platen, means for adjusting the type carriers to select the desired type, a fixed aligner for the type carriers, means for moving the type carriers to printing position and simultaneously into engagement with the fixed aligner and away from printing position and out of engagement with the aligner, and means for taking an impression while the type carriers are in printing position.

6. In a recording machine, the combination of a platen positioned for visual inspection at the printing line, type carriers provided withv a plurality of type co-operating with the platen, means for adjusting the type carriers to align the individual type to be printed, a bail for moving the type carriers toward and away fromthe platen, and means for taking an impression while the type carriers are adjacent the platen.

7. In a recording machine, a platen positioned for visual inspection at the printing 8. In a recordingl machine, a platen `posisioned for visual inspection at the printing line, type carriers provided with a plurality of type co-operating with the platen, a bail having means for supporting and guiding the type carriers, means for adjusting the type carriers in the bail to select the desired type, camming means for positively operating the bail to move the type carriers toward the platen, means for taking an impression from the type while they are in printingy position, and means for returning the type carriers to normal position.

9. In a recording machine, a platen posi` tioned for visual inspection at the printing line, type bars provided with aligning serrations, an aligning bar co-operating with the serrations in the type bars, a bail having means for supporting and guiding the type bars, means for positively operating the bail to move the type bars toward the platen and simultaneously to engage the serrations thereof with the 'aligning bar, andmeans for restoring the type bars to normal position.

10. In a recording machine, a platen positioned for visual inspection at thev printing line, type carriers each provided with a plurality of type co-operating with the platen, mea-ns for adjusting the type carriers to select the desired type,jhammers for striking the selected type, means for moving the previously adjusted type carriers to printing position between the platen and the hammers, means for giving the hammers a .striking blow to effect the impression, and means for restoring the parts to normal position. 1

11. In a recording machine, a platen positioned for visual inspection at the rinting 5 line, type carriers each provided wit a plu-- rality of type co-operatng with the platen,

' hammers for the type, means for ad]usting the type carriers'to select the desired type, means for moving the type carriers to print- `ing position between the platen and the hammers, means for giving the hammers a striking blow, triggers one for each hammer, means controlled by the type carriers for couplingthe triggerswith the hammer striking mechanism as the former are adjusted to select the type, means for releasing the hammers of` e type carriers which have been adjusted to select the type, and means for restoring the parts to normal position.

12. In a recording machine, a laten positioned for. visual inspection at t e printing line, type carriers each provided with a plurality of type co-operating with the platen, hammers for the type, means for moving the 25 type carriers to prlnting position between the' platen and the hammers, `means for giving the hammers a striking blow, triggers one for each hammer controlled by the type carriers so that only the triggers for the hammers of the type carriers which are adjusted are coupled to their hammer mechanism, means whereby the type carriers which are not adjusted retain control over their triggers while the type carriers are moved to printing 35 position, means controlled by the triggers f or 4 my signature.

releasing the hammers of the type carriers which have been adjusted, and means for-'restoring the parts.

In testimony whereof, I have hereto aixed EDNA B. GARDNER, Admm'stratn'ar of the Estate of Ulyde Gardner, Deceased. l 

